摘要： 结合固定时隙分配协议、按需请求分配协议、随机接入分配协议的优点，提出一种适应性的混合卫星通信网络MAC协议CFDR-MAC。分配机制的边界点可以动态调节，从而实现MAC协议的适应性控制。仿真结果表明，CFDR-MAC具有较好的吞吐率和时延性能，能满足卫星通信网络的多种应用流量场景要求。

关键词: 卫星通信, 媒体接入控制, 带宽按需分配, CFDAMA协议

Abstract: By combining the advantages of Fixed Assignment(FA) protocol, Demand Assignment(DA) protocol and Random Access(RA) protocol, this paper proposes an adaptive hybrid Medium Access Control(MAC) protocol for satellite communication networks, which is named CFDR-MAC. The proportion parameter of assignment boundary can be adjusted flexibly and adaptively, so that MAC protocol can be controlled adaptively. Simulation results show that CFDR-MAC protocol has better throughput, less delay, and it can adapt to various satellite communication networks.

Key words: satellite communication, Medium Access Control(MAC), bandwidth demand assignment, CFDAMA protocol

中图分类号: 

• TN927